Recording medium, recording apparatus and method, and reproducing apparatus and method

Abstract

A recording medium ( 100 ) is provided with: an element layer including a semiconductor element ( 110 ) and an emission element ( 130 ), which emits light on the basis of an instruction from the semiconductor element; and a recording layer ( 120 ) in which readable predetermined data is recorded by irradiating a light beam.

1. A recording medium comprising:
 an element layer comprising a semiconductor element and an emission element, which emits light on the basis of an instruction from the semiconductor element; and 
 a recording layer in which readable predetermined data is recorded by irradiating a light beam, 
 the emission element performing at least one of signal transmission and reception, under control the semiconductor element. 
 
   
   
     2. The recording medium according to  claim 1 , wherein the semiconductor element is formed by at least one of a deposition method and a coating method. 
   
   
     3. The recording medium according to  claim 1 , wherein the semiconductor element includes an organic semiconductor. 
   
   
     4. The recording medium according to  claim 1 , wherein the semiconductor element stores therein data which is related to the data recorded in said recording layer. 
   
   
     5. The recording medium according to  claim 1 , wherein
 said recording medium has a circular disk shape, and 
 the emission element is formed in a ring shape. 
 
   
   
     6. The recording medium according to  claim 1 , wherein the emission element is formed throughout an entire surface of said recording medium. 
   
   
     7. The recording medium according to  claim 1 , wherein an emission pattern of the emission element is a barcode pattern. 
   
   
     8. The recording medium according to  claim 1 , wherein the emission element includes an organic EL (Electro Luminescence) element. 
   
   
     9. The recording medium according to  claim 1 , wherein the emission element includes an inorganic EL element. 
   
   
     10. The recording medium according to  claim 1 , wherein the emission element is formed in a position closer to an exterior of said recording medium, compared to the semiconductor element. 
   
   
     11. The recording medium according to  claim 1 , wherein said element layer further comprises a light receiving element for receiving light which enters from an exterior of said recording medium. 
   
   
     12. The recording medium according to  claim 11 , wherein
 said recording medium has a circular disk shape, and 
 the light receiving element is formed in a ring shape. 
 
   
   
     13. The recording medium according to  claim 11 , wherein the light receiving element includes an organic light receiving element. 
   
   
     14. The recording medium according to  claim 11 , wherein the light receiving element is formed in a position closer to an exterior of said recording medium, compared to the semiconductor element. 
   
   
     15. The recording medium according to  claim 1 , wherein said element layer further comprises a feed element for feeding an electric power to at least one of the semiconductor element and the emission element. 
   
   
     16. The recording medium according to  claim 15 , wherein the feed element includes an organic solar battery. 
   
   
     17. The recording medium according to  claim 16 , wherein the organic solar battery is formed in a position closer to an exterior of said recording medium, compared to the semiconductor element. 
   
   
     18. The recording medium according to  claim 11 , further comprising an electrical double capacitor layer in which an electric power which is photoelectrically converted by the light receiving element. 
   
   
     19. A recording apparatus for recording data onto a recording medium comprising: an element layer comprising a semiconductor element and an emission element, which emits light on the basis of an instruction from the semiconductor element; and a recording layer in which the readable predetermined data is recorded by irradiating a light beam, the emission element performing at least one of signal transmission and reception, under control the semiconductor element, said recording apparatus comprising:
 a recording device for recording the data into said recording layer by irradiating the light beam; and 
 a light receiving device for receiving the light emitted by the emission element. 
 
   
   
     20. The recording apparatus according to  claim 19 , wherein
 said element layer further comprises a light receiving element for receiving light which enters from an exterior of said recording medium, and 
 said recording apparatus further comprises an emitting device for emitting light to the light receiving element. 
 
   
   
     21. A recording method of recording data onto a recording medium comprising: an element layer comprising a semiconductor element and an emission element, which emits light on the basis of an instruction from the semiconductor element; and a recording layer in which the readable predetermined data is recorded by irradiating a light beam, the emission element performing at least one of signal transmission and reception, under control the semiconductor element, said recording method comprising:
 a recording process of recording the data into said recording layer by irradiating the light beam; and 
 a light receiving process of receiving the light emitted by the emission element. 
 
   
   
     22. A reproducing apparatus for reproducing data recorded on a recording medium comprising: an element layer comprising a semiconductor element and an emission element, which emits light on the basis of an instruction from the semiconductor element; and a recording layer in which the readable predetermined data is recorded by irradiating a light beam, the emission element performing at least one of signal transmission and reception, under control the semiconductor element, said reproducing apparatus comprising:
 a reproducing device for reproducing the data recorded in said recording layer by irradiating the light beam; and 
 a light receiving device for receiving the light emitted by the emission element. 
 
   
   
     23. The reproducing apparatus according to  claim 22 , wherein
 said element layer further comprises a light receiving element for receiving light which enters from an exterior of said recording medium, and 
 said reproducing apparatus further comprises an emitting device for emitting light to the light receiving element. 
 
   
   
     24. A reproducing method of reproducing data recorded on a recording medium comprising: an element layer comprising a semiconductor element and an emission element, which emits light on the basis of an instruction from the semiconductor element; and a recording layer in which the readable predetermined data is recorded by irradiating a light beam, the emission element performing at least one of signal transmission and reception, under control the semiconductor element, said reproducing method comprising:
 a reproducing process of reproducing the data recorded in said recording layer by irradiating the light beam; and 
 a light receiving process of receiving the light emitted by the emission element.